---Have you been to the National Theatre?
---No, but I’ve bought two tickets for the concert to be given this weekend.
A. yet
B. even
C. ever
D. already
网友回答
A. yet
B. even
C. ever
(答案→)D. already
解析：考查词义辨析。yet 然而，even 甚至，ever 曾经，already 已经，句意：你去过国家剧院吗？没有，但是我已经买了两张票去看这个周末的音乐会。所以选D。